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Discover what runs a website in one click 🖥️ 🔍


WhatRuns is a free technology lookup tool for developers, designers and salespeople to discover the technologies used on any website.

Available for free on Chrome and Firefox.

8 Reviews
Joshua Dance
M Haidar Hanif
Robert Novak
 +27 reviews
  • Abhilash Jain
    Abhilash JainProduct Marketing / Growth

    Beautiful Design, Easy to Use


    None I can think of

    Its brilliant. It gives you a quick breakdown of what the site is made up of.

    My personal fav is that it tells you which theme a Wordpress site is using upfront also shows the extensions used.

    Must have for marketers / anyone interested in webdesign.

  • Ali Sifton
    Ali SiftonMarketing Director, ContactMonkey

    Easy to Use


    Includes tools not relevant to me

    Surfaces the tools and applications running on websites which is great for understanding what dev, marketing, and sales tools competitors and top industry performers are running.

    Ali Sifton has used this product for one day.
  • Erin Donovan
    Erin Donovansupport tech | corporate trainer

    Learn a website's Analytics provider, Web Server, OS, Programming Language, and more!


    I haven't found an alternative. I like how this runs!

    This is a fun, little Chrome and Firefox add-on that doesn't take up much space, but tells you a lot of valuable information about what services run a website you search! I added the add-on to Chrome > navigate to a Website > click the WhatRuns Icon on my Chrome toolbar and voilà > see what runs! Learn a website's Analytics provider, Web Server, OS, Programming Language, and more! I like the clickable links to learn more, and that you can subscribe to sites. Check out their website and look up the Bug Bounty program: It's a simple idea that "rewards researchers for their efforts in finding out vulnerabilities in our (WhatRuns) product.

    Erin Donovan has used this product for one month.
  • Joshua Dance
    Joshua DanceEngineer, Product, athlete, indie hacker

    Great clean look


    takes a few seconds to load. Not a big deal

    Just tried this and I love the look and the clean UX. If the data is as good as BuiltWith, I will switch. :)

  • Pros: 

    Simple design, Quickness, Website Lists


    I have not found a better alternative.

    WhatRuns is a new favorite in terms of chromes extensions. I would definitely rate this as a chrome extension every web developer should have.

  • Karim Maassen
    Karim MaassenFounder / CEO nwzer.com

    Works as promised


    No cons

    Been using it for a while now and it does what it promises. It's quick and accurate. Well done!

  • dosney

    Chrome plugin!


    Not sure if it covers all technology

    Much better than buildwith.com

    dosney has used this product for one week.
  • Chinara James
    Chinara JamesWeb Developer, Lonsdale S&S Advertising

    Easy to use


    As of late, has consistently given incorrect data

    Given wrong information about the stack and technology used as of

    late to where it is completely useless in comparison to a site like builtwith.com

    Chinara James has used this product for one year.